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Latest 25 from a total of 1,087 transactions
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Aggregate3Funded | 20682606 | 4 hrs ago | IN | 0.00489604 ETH | 0.00330022 | ||||
Aggregate3Funded | 20681756 | 7 hrs ago | IN | 0 ETH | 0.01255032 | ||||
Aggregate3 | 20680665 | 11 hrs ago | IN | 0 ETH | 0.00743945 | ||||
Aggregate3Funded | 20674704 | 31 hrs ago | IN | 0.0060991 ETH | 0.00433705 | ||||
Aggregate3Funded | 20673520 | 35 hrs ago | IN | 0 ETH | 0.0085512 | ||||
Aggregate3Funded | 20660386 | 3 days ago | IN | 0 ETH | 0.00067659 | ||||
Aggregate3Funded | 20657999 | 3 days ago | IN | 0 ETH | 0.00067659 | ||||
Aggregate3Funded | 20655611 | 3 days ago | IN | 0 ETH | 0.00067659 | ||||
Aggregate3 | 20655333 | 4 days ago | IN | 0 ETH | 0.00146977 | ||||
Aggregate3Funded | 20653940 | 4 days ago | IN | 0.00482501 ETH | 0.00108022 | ||||
Aggregate3Funded | 20653222 | 4 days ago | IN | 0 ETH | 0.00067659 | ||||
Aggregate3Funded | 20650831 | 4 days ago | IN | 0 ETH | 0.00067659 | ||||
Aggregate3Funded | 20648446 | 4 days ago | IN | 0 ETH | 0.00067659 | ||||
Aggregate3 | 20647397 | 5 days ago | IN | 0 ETH | 0.0039683 | ||||
Aggregate3Funded | 20646055 | 5 days ago | IN | 0 ETH | 0.00069369 | ||||
Aggregate3Funded | 20643675 | 5 days ago | IN | 0 ETH | 0.00140267 | ||||
Aggregate3Funded | 20641868 | 5 days ago | IN | 0.00344646 ETH | 0.00797998 | ||||
Aggregate3Funded | 20641285 | 5 days ago | IN | 0 ETH | 0.00157173 | ||||
Aggregate3 | 20640808 | 6 days ago | IN | 0 ETH | 0.00046425 | ||||
Aggregate3Funded | 20638895 | 6 days ago | IN | 0 ETH | 0.00067659 | ||||
Aggregate3Funded | 20636518 | 6 days ago | IN | 0 ETH | 0.00127245 | ||||
Aggregate3Funded | 20634131 | 6 days ago | IN | 0 ETH | 0.00298317 | ||||
Aggregate3Funded | 20632463 | 7 days ago | IN | 0.00482447 ETH | 0.00109723 | ||||
Aggregate3Funded | 20631751 | 7 days ago | IN | 0 ETH | 0.0007294 | ||||
Aggregate3 | 20630546 | 7 days ago | IN | 0 ETH | 0.00243527 |
Latest 25 internal transactions (View All)
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20682606 | 4 hrs ago | 0.00044953 ETH | ||||
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20674704 | 31 hrs ago | 0.00021211 ETH |
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Contract Name:
KeeperMulticall3
Compiler Version
v0.8.11+commit.d7f03943
Optimization Enabled:
Yes with 800 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.11; import "@openzeppelin/contracts-0.8/access/Ownable.sol"; import { IERC20 } from "@openzeppelin/contracts-0.8/token/ERC20/IERC20.sol"; import { SafeERC20 } from "@openzeppelin/contracts-0.8/token/ERC20/utils/SafeERC20.sol"; import { Multicall3 } from "./Multicall3.sol"; /** * @title KeeperMulticall3 * @notice Aggregate results from multiple function calls * @dev Aggregate methods are marked `payable` to save 24 gas per call * @author Aura Finance */ contract KeeperMulticall3 is Multicall3, Ownable { using SafeERC20 for IERC20; mapping(address => bool) public authorizedKeepers; constructor(address _owner) { _transferOwnership(_owner); } /// @notice Adds or remove an address from the harvesters' whitelist /// @param _harvester address of the authorized harvester /// @param _authorized Whether to add or remove harvester function updateAuthorizedKeepers(address _harvester, bool _authorized) external onlyOwner { authorizedKeepers[_harvester] = _authorized; } /* ------------------------------------------------------------------- Modifiers ------------------------------------------------------------------- */ modifier onlyKeeper() { require(authorizedKeepers[msg.sender], "!keeper"); _; } /// @notice Aggregate calls, ensuring each returns success if required /// @param calls An array of Call3 structs /// @return returnData An array of Result structs function aggregate3(Call3[] calldata calls) public payable virtual override onlyKeeper returns (Result[] memory returnData) { return super.aggregate3(calls); } /// @notice Aggregate calls with a msg value /// @notice Reverts if msg.value is less than the sum of the call values /// @param calls An array of Call3Value structs /// @return returnData An array of Result structs function aggregate3Value(Call3Value[] calldata calls) public payable virtual override onlyKeeper returns (Result[] memory returnData) { return super.aggregate3Value(calls); } /// @notice Aggregate calls with a msg value previously funded /// @notice It requires to fund this contract previous to any call. /// @param calls An array of Call3Value structs /// @return returnData An array of Result structs function aggregate3Funded(Call3Value[] calldata calls) public payable virtual override onlyKeeper returns (Result[] memory returnData) { return super.aggregate3Funded(calls); } function recoverEthBalance() external onlyOwner { address addr = address(this); (bool sent, ) = payable(owner()).call{ value: getEthBalance(addr) }(""); require(sent, "!refund"); } function recoverERC20(address _tokenAddress, uint256 _tokenAmount) external onlyOwner { IERC20(_tokenAddress).safeTransfer(owner(), _tokenAmount); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.11; /** * @title Multicall3 * @notice Aggregate results from multiple function calls * @dev Aggregate methods are marked `payable` to save 24 gas per call * @dev Original implementation https://raw.githubusercontent.com/mds1/multicall/main/src/Multicall3.sol * @dev Aura fork removes all backwards-compatible methods and add funded functions. * @author Michael Elliot <[email protected]> * @author Joshua Levine <[email protected]> * @author Nick Johnson <[email protected]> * @author Andreas Bigger <[email protected]> * @author Matt Solomon <[email protected]> */ contract Multicall3 { /* ========== STRUCTS ========== */ struct Call3 { address target; bool allowFailure; bytes callData; } struct Call3Value { address target; bool allowFailure; uint256 value; bytes callData; } struct Result { bool success; bytes returnData; } /// @notice Aggregate calls, ensuring each returns success if required /// @param calls An array of Call3 structs /// @return returnData An array of Result structs function aggregate3(Call3[] calldata calls) public payable virtual returns (Result[] memory returnData) { uint256 length = calls.length; returnData = new Result[](length); Call3 calldata calli; for (uint256 i = 0; i < length; ) { Result memory result = returnData[i]; calli = calls[i]; (result.success, result.returnData) = calli.target.call(calli.callData); assembly { // Revert if the call fails and failure is not allowed // `allowFailure := calldataload(add(calli, 0x20))` and `success := mload(result)` if iszero(or(calldataload(add(calli, 0x20)), mload(result))) { // set "Error(string)" signature: bytes32(bytes4(keccak256("Error(string)"))) mstore(0x00, 0x08c379a000000000000000000000000000000000000000000000000000000000) // set data offset mstore(0x04, 0x0000000000000000000000000000000000000000000000000000000000000020) // set length of revert string mstore(0x24, 0x0000000000000000000000000000000000000000000000000000000000000017) // set revert string: bytes32(abi.encodePacked("Multicall3: call failed")) mstore(0x44, 0x4d756c746963616c6c333a2063616c6c206661696c6564000000000000000000) revert(0x00, 0x64) } } unchecked { ++i; } } } /// @notice Aggregate calls with a msg value /// @notice Reverts if msg.value is less than the sum of the call values /// @param calls An array of Call3Value structs /// @return returnData An array of Result structs function aggregate3Value(Call3Value[] calldata calls) public payable virtual returns (Result[] memory returnData) { uint256 valAccumulator; uint256 length = calls.length; returnData = new Result[](length); Call3Value calldata calli; for (uint256 i = 0; i < length; ) { Result memory result = returnData[i]; calli = calls[i]; uint256 val = calli.value; // Humanity will be a Type V Kardashev Civilization before this overflows - andreas // ~ 10^25 Wei in existence << ~ 10^76 size uint fits in a uint256 unchecked { valAccumulator += val; } (result.success, result.returnData) = calli.target.call{ value: val }(calli.callData); assembly { // Revert if the call fails and failure is not allowed // `allowFailure := calldataload(add(calli, 0x20))` and `success := mload(result)` if iszero(or(calldataload(add(calli, 0x20)), mload(result))) { // set "Error(string)" signature: bytes32(bytes4(keccak256("Error(string)"))) mstore(0x00, 0x08c379a000000000000000000000000000000000000000000000000000000000) // set data offset mstore(0x04, 0x0000000000000000000000000000000000000000000000000000000000000020) // set length of revert string mstore(0x24, 0x0000000000000000000000000000000000000000000000000000000000000017) // set revert string: bytes32(abi.encodePacked("Multicall3: call failed")) mstore(0x44, 0x4d756c746963616c6c333a2063616c6c206661696c6564000000000000000000) revert(0x00, 0x84) } } unchecked { ++i; } } // Finally, make sure the msg.value = SUM(call[0...i].value) require(msg.value == valAccumulator, "Multicall3: value mismatch"); } /// @notice Aggregate calls with a msg value previously funded /// @notice It requires to fund this contract previous to any call. /// @param calls An array of Call3Value structs /// @return returnData An array of Result structs function aggregate3Funded(Call3Value[] calldata calls) public payable virtual returns (Result[] memory returnData) { uint256 valAccumulator; uint256 length = calls.length; returnData = new Result[](length); Call3Value calldata calli; for (uint256 i = 0; i < length; ) { Result memory result = returnData[i]; calli = calls[i]; uint256 val = calli.value; // Humanity will be a Type V Kardashev Civilization before this overflows - andreas // ~ 10^25 Wei in existence << ~ 10^76 size uint fits in a uint256 unchecked { valAccumulator += val; } (result.success, result.returnData) = calli.target.call{ value: val }(calli.callData); assembly { // Revert if the call fails and failure is not allowed // `allowFailure := calldataload(add(calli, 0x20))` and `success := mload(result)` if iszero(or(calldataload(add(calli, 0x20)), mload(result))) { // set "Error(string)" signature: bytes32(bytes4(keccak256("Error(string)"))) mstore(0x00, 0x08c379a000000000000000000000000000000000000000000000000000000000) // set data offset mstore(0x04, 0x0000000000000000000000000000000000000000000000000000000000000020) // set length of revert string mstore(0x24, 0x0000000000000000000000000000000000000000000000000000000000000017) // set revert string: bytes32(abi.encodePacked("Multicall3: call failed")) mstore(0x44, 0x4d756c746963616c6c333a2063616c6c206661696c6564000000000000000000) revert(0x00, 0x84) } } unchecked { ++i; } } } /// @notice Returns the block hash for the given block number /// @param blockNumber The block number function getBlockHash(uint256 blockNumber) public view returns (bytes32 blockHash) { blockHash = blockhash(blockNumber); } /// @notice Returns the block number function getBlockNumber() public view returns (uint256 blockNumber) { blockNumber = block.number; } /// @notice Returns the block coinbase function getCurrentBlockCoinbase() public view returns (address coinbase) { coinbase = block.coinbase; } /// @notice Returns the block difficulty function getCurrentBlockDifficulty() public view returns (uint256 difficulty) { difficulty = block.difficulty; } /// @notice Returns the block gas limit function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) { gaslimit = block.gaslimit; } /// @notice Returns the block timestamp function getCurrentBlockTimestamp() public view returns (uint256 timestamp) { timestamp = block.timestamp; } /// @notice Returns the (ETH) balance of a given address function getEthBalance(address addr) public view returns (uint256 balance) { balance = addr.balance; } /// @notice Returns the block hash of the last block function getLastBlockHash() public view returns (bytes32 blockHash) { unchecked { blockHash = blockhash(block.number - 1); } } /// @notice Gets the base fee of the given block /// @notice Can revert if the BASEFEE opcode is not implemented by the given chain function getBasefee() public view returns (uint256 basefee) { basefee = block.basefee; } /// @notice Returns the chain id function getChainId() public view returns (uint256 chainid) { chainid = block.chainid; } receive() external payable {} }
{ "metadata": { "bytecodeHash": "none" }, "optimizer": { "enabled": true, "runs": 800 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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[{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"allowFailure","type":"bool"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall3.Call3[]","name":"calls","type":"tuple[]"}],"name":"aggregate3","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall3.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"allowFailure","type":"bool"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall3.Call3Value[]","name":"calls","type":"tuple[]"}],"name":"aggregate3Funded","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall3.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"allowFailure","type":"bool"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall3.Call3Value[]","name":"calls","type":"tuple[]"}],"name":"aggregate3Value","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall3.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"authorizedKeepers","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBasefee","outputs":[{"internalType":"uint256","name":"basefee","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBlockNumber","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getChainId","outputs":[{"internalType":"uint256","name":"chainid","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockCoinbase","outputs":[{"internalType":"address","name":"coinbase","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockDifficulty","outputs":[{"internalType":"uint256","name":"difficulty","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockGasLimit","outputs":[{"internalType":"uint256","name":"gaslimit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockTimestamp","outputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"getEthBalance","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLastBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"},{"internalType":"uint256","name":"_tokenAmount","type":"uint256"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"recoverEthBalance","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_harvester","type":"address"},{"internalType":"bool","name":"_authorized","type":"bool"}],"name":"updateAuthorizedKeepers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000030019eb135532bddf2da17659101cc000c73c8e4
-----Decoded View---------------
Arg [0] : _owner (address): 0x30019eB135532bDdF2Da17659101cc000C73c8e4
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000030019eb135532bddf2da17659101cc000c73c8e4
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.